209980804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{809}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 426202560

約数和(自身を除く): 216221756

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 347, 374, 694, 748, 809, 1388, 1618, 3236, 3817, 5899, 7634, 8899, 11798, 13753, 15268, 17798, 23596, 27506, 35596, 55012, 64889, 129778, 151283, 259556, 280723, 302566, 561446, 605132, 1122892, 3087953, 4772291, 6175906, 9544582, 12351812, 19089164, 52495201, 104990402, 209980804]

約数ペア:

[(1, 209980804), (2, 104990402), (4, 52495201), (11, 19089164), (17, 12351812), (22, 9544582), (34, 6175906), (44, 4772291), (68, 3087953), (187, 1122892), (347, 605132), (374, 561446), (694, 302566), (748, 280723), (809, 259556), (1388, 151283), (1618, 129778), (3236, 64889), (3817, 55012), (5899, 35596), (7634, 27506), (8899, 23596), (11798, 17798), (13753, 15268)]